in. to make advances to a person. : She didn't even know he was coming on to her, till they got to his place.
in. to try to get someone to respond romantically or sexually. : She was just starting to come on to me when her parents came home.
in. to begin to become friendly. : After a few minutes, they began to come on to each other.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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